I've just finished The Picture of Dorian Gray by Oscar Wilde. Most of the quotes that one finds from him are actually the ramblings of a character, Lord Henry Wotton, who has a bad influence on Dorian Gray. They are so many gems, that I want to reproduce them here.
We can forgive a man for making a useful thing as long as he does not admire it. The only excuse for making a useless thing is that one admires it intensely. All art is quite useless.
But I can’t help detesting my relations. I suppose it comes from the fact that none of us can stand other people having the same faults as ourselves.
Those who are faithful know only the trivial side of love: it is the faithless who know love’s tragedies.
There is no such thing as a good influence, Mr. Gray. All influence is immoral—immoral from the scientific point of view.